package com.example.service.impl;

import com.example.entity.AccountInfo;
import com.fasterxml.jackson.annotation.JsonIgnore;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.io.Serializable;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

@Data
@NoArgsConstructor
@AllArgsConstructor
public class LoginAccountInfo implements UserDetails, Serializable {

    private AccountInfo accountInfo;

    private List<String> permissions;

    //存储SpringSecurity所需要的权限信息的集合
    @JsonIgnore
    private List<SimpleGrantedAuthority> authorities;

    /**
     * 获取权限信息
     * @return
     */
    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        if(authorities!=null){
            return authorities;
        }
        //把permission中的string类型的权限信息封装成SimpleGrantedAuthority对象
//       List<SimpleGrantedAuthority> newList = new ArrayList<>();
//        for (String permission : permissions) {
//            SimpleGrantedAuthority authority = new SimpleGrantedAuthority(permission);
//            newList.add(authority);
//        }
        //使用函数编程简化
        authorities = permissions.stream()
                .map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());
        return authorities;
    }

    @Override
    public String getPassword() {
        return accountInfo.getPassword();
    }

    @Override
    public String getUsername() {
        return accountInfo.getAccount();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}



